01024982

Component

https://doi.org/10.3141/1948-18

http://scholar.google.com...tsov&publication_year=2006

Winter weather conditions play a significant role in the operation of the surface transportation system, including heightening safety risks for motorists. Previous research has sought to correlate winter weather severity with maintenance costs through the use of indices, although few have been developed to relate winter weather parameters to safety. This paper summarizes a research project using data from California, Montana, and Oregon to quantify relationships between winter weather and safety. Many model forms were reviewed, and then linear models were developed to predict the cubic root of the crash rate as a function of weather parameters. Models were developed for different topographic zones and on a statewide level, with correlations ranging from 0.12 to 0.67. These models were used to develop indices that may be used for traveler information purposes. The indices show promise for application in traveler information and winter maintenance; therefore, recommendations for research are included.

01031686

English

pp 161-169

2006

Transportation Research Record: Journal of the Transportation Research Board

0309099579

Print

Figures (4) ; References (11) ; Tables (3)

Correlation analysis; Crash rates; Highway safety; Mathematical models; Road weather information systems; Weather conditions; Weather forecasting; Winter maintenance

California; Montana; Oregon

Data and Information Technology; Highways; Maintenance and Preservation; Safety and Human Factors; I62: Winter Maintenance; I80: Accident Studies

TRIS, TRB

Mar 3 2006 10:50AM

• A Model to Evaluate Roadway Concessions in Brazil
• Automated Work-Zone Information System on Urban Freeway Rehabilitation: California Implementation
• Collaborative Adaptive Sensing of the Atmosphere: New Radar System for Improving Analysis and Forecasting of Surface Weather Conditions
• Dynamic Late Merge Control at Highway Work Zones: Evaluation, Observations, and Suggestions
• Effectiveness of Alternative Chemicals for Snow Removal on Highways
• Effects of Outsourcing and Performance-Based Contracting on Innovations
• Effects of the Provision of Wide-Area Snowstorm Information on Winter Driving
• Estimating Interstate Highway Capacity for Short-Term Work Zone Lane Closures: Development of Methodology
• Feasibility of Using Accelerated Pavement Testing to Evaluate Long-Term Performance of Raised Pavement Markers
• Framework for Automatic Condition Assessment of Culverts
• Improving Compliance with Work Zone Speed Limits: Effectiveness of Selected Devices
• Integrated Approach to Pavement Marking Management
• Internal Traffic Control Plans and Worker Safety Planning Tool
• Motorist Comprehension of Traffic Control Devices for Mobile Operations
• Regression Tree Models to Predict Winter Storm Costs
• Snowstorm Event-Based Crash Analysis
• Understanding Statistics in Maintenance Quality Assurance Programs
• Whether Weather Matters to Traffic Demand, Traffic Safety, and Traffic Operations and Flow